Yes, you can.
esphome:
on_boot:
priority: 600
then:
- lambda: |-
id(pulse_relay_1).publish_state(id(powerstatus).state);
You could also change the binary_sensor to use the same code, if you want.
binary_sensor:
- platform: gpio
id: powerstatus
pin:
number: 14
mode: INPUT_PULLUP
inverted: True
name: "Power Status"
on_state:
then:
- lambda: |-
id(pulse_relay_1).publish_state(id(powerstatus).state);
Or create a script they both call.
esphome:
on_boot:
priority: 600
then:
- script.execute: set_heater_switch
binary_sensor:
- platform: gpio
id: powerstatus
pin:
number: 14
mode: INPUT_PULLUP
inverted: True
name: "Power Status"
on_state:
then:
- script.execute: set_heater_switch
script:
- id: set_heater_switch
mode: single
then:
- lambda: |-
id(pulse_relay_1).publish_state(id(powerstatus).state);